New motor ideas, 2.0 liter rebuild (or bigger) Options

[realred914]

The 1.7 Djet wont work on a 2056?

some parts can be made to work, the mps is adjustable if yu got the right cast casing on it(some allow more adjustment evidently) the injectors are probably too small, but you could likely drive the 2.0 liter injectors like the 73 2.o liter you may want the inline head temp resistor. the 2.0 liter d-jet is only seeing a less than 10% displacment increase with a 2050 motor, probably within the design limits of the 2.o liter d-jet system specialy when tuned (MPS adjusted)

the 1.7 i to 2050 s going to be a near a 20% displacment increase and hence will require more modifications IF it is to work as well as a tuned 2.0 D-jet system.

best to start this conversion withthe 2.0 system, but anything can work, just is which is easiest for you and makes mostest cents????? (IMG:style_emoticons/default/driving.gif) (IMG:style_emoticons/default/driving.gif) (IMG:style_emoticons/default/driving.gif)

[Bleyseng]

I could make the 1.7L intake setup work with 2.0L injectors, tune the MPS etc.

The 1.7L intake is smaller robbing hp at higher rpms, but mostly the 1.7L injectors are to small to work in my experience. I guess the motor would have good torque down low to midrange but suffer above 4000rpms.
I have tuned a couple of 1.9L (96x66) Djet engines and tossed the 1.7L injectors as they couldn't provide enough fuel across the rpm range. Mps's that are easy to tune for a 2056 Djet engine are the 049. 037, and 043 as they lack a internal stop ring which gives you more adjustment of the AFR. If you have a good early MPS the cover can be changed to a later one lacking the internal stop ring!

If you are going to spend money of rebuilding a engine, do it right and go to a 2056. Lots of bus 2.0L cranks and rods are out there (yes, they are the same). Get a set of Raby new heads setup with 3 bolts, find a good 2.0L FI setup (I have two extra sets stashed), Raby cam and liters (valvetrain package) and a good MPS.
Assemble it with care and have 120hp and lots of fun and heat for years to come without high oil temps/CHT's burning up your new engine. That 30 mpg is nice too these days.

[orange914]

I could make the 1.7L intake setup work with 2.0L injectors, tune the MPS etc.

The 1.7L intake is smaller robbing hp at higher rpms, but mostly the 1.7L injectors are to small to work in my experience. I guess the motor would have good torque down low to midrange but suffer above 4000rpms.
I have tuned a couple of 1.9L (96x66) Djet engines and tossed the 1.7L injectors as they couldn't provide enough fuel across the rpm range. Mps's that are easy to tune for a 2056 Djet engine are the 049. 037, and 043 as they lack a internal stop ring which gives you more adjustment of the AFR. If you have a good early MPS the cover can be changed to a later one lacking the internal stop ring!

If you are going to spend money of rebuilding a engine, do it right and go to a 2056. Lots of bus 2.0L cranks and rods are out there (yes, they are the same). Get a set of Raby new heads setup with 3 bolts, find a good 2.0L FI setup (I have two extra sets stashed), Raby cam and liters (valvetrain package) and a good MPS.
Assemble it with care and have 120hp and lots of fun and heat for years to come without high oil temps/CHT's burning up your new engine. That 30 mpg is nice too these days.

(IMG:style_emoticons/default/agree.gif) what he said (IMG:style_emoticons/default/driving.gif)

[Bleyseng]

you can use the 1.8L Ljet too if you want and its easier to tune.